Air-blast-regulating device for fanning-mills



(No Model.)

J. S. ADY. AIR BLAST RBGULAI'ING DEVICE FOR FANNING MILLS. No. 432,352.Patented July 15, 1890.

vented certain new and useful Improvements .air are actuated byconnection with a speed- NITED STATES JAMES S. ADY, OF

PATENT ODEBOLT, Iowa.

SPECIFICATION forming part of Letters Application filed October 1 1889.

To all whom it may conorn:

Be it known that LJAMES S. ADY, a citizen of the United States, residingat Odebolt, in the county of Sac and State of Iowa, have ininAir-Blast'Regulating Devices for Fanning- Mills; and I do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompany ing drawing,and to the letters of reference marked thereon, which form a partof thisspecification.

This invention relates to certain new and useful improvements inair-blast-regulating devices for fanning-mills of that class wherein theshutters controlling the admission of governor; and it has for itsobject, among others, to provide an improved device of this characterwhich shall be composed of fewer parts, operated more easily andpositively, and wherein provision is made for obtaining a uniform powerby means of springs applied at the ends of the vibrating levers, whichare actuated by the governor.

The invention consists in the peculiar combinations and the novelconstruction, arrangement, and adaptation of parts, all as more fullyhereinafter described, shown in the drawing, and then particularlypointed out in the appended claims.

The invention is clearly illustrated in the accompanying drawing, which,with the letters of reference marked thereon, forms a part of thisspecification, and which is a perspective view of a portion of afanninmill, showing sufficient parts thereof to illustrate theapplication of my invention thereto.

Referring to the details of the drawing by letter, A designates theframe or case of the machine, and B the fan-case; 0, one of the shuttersfor regulating the admission of air thereto; D, the crank-shaft, and Ethe main driving-pulleys, to which the power is applied in anywell-known manner. All of these parts may be of any known constructionand operate in the usual manner, and as they form no part of the presentinvention further description and illustration thereof are not deemednecessary.

Patent No. 432,352, dated July 15, 1890.

Serial No. 326,915. (No model.)

Fast on the shaft D is a pulley d, from which poweris transmitted to thepulley a by means of the band or belt b. This pulley a is carried by ahorizontal shaft 0, journaled in suitable bearings e attached to astationary part of the machine, and carrying at its opposite end a bevelgear-wheel f, which meshes with a bevel gear-Wheel g on the lower end ofthe governor-shaft F, which is supported in suitable steps, as shown inFig. 1.

G is a sleeve on the governor-shaft, and this sleeve carries near itsupper end a clamp or semicircular band 7L, which fits in a groove in thesleeve, as shown. This clamp may be formed of two semicircular parts, ormay be a collar formed with lugs or cars i, between which are pivotedthe inner ends of the vibrating levers H, which are pivoted about midwaytheir length to the upper ends of the standards j and at theirother endsforked or otherwise formed to embrace and work loosely on the guide-rodsI, fixed to some stationary part of the machine. The out-er ends ofthese levers extend beyond the said guides and pass through elongatedslots in the ends of one arm of the bell-crank levers J,'pivoted attheir angles, as at Z, to some fixed support, as the bar m, the otherends of these bell-crank levers being connected with the rods or bars K,the ends of which are attached to the shutters O, as shown.

L is a support having at one end a bearing for the upper end of thegovernor-shaft.

The governor-anns M. carry at their lower ends the balls N, and betweentheir ends have pivotally connected thereto one end of the arms 0, theopposite ends of which are pivotally attached to the sleeve G on thegovernorshaft on a common pivot o. The opposite ends of thegovernor-arms are attached to the ends of the horizontal bar 1).

Surrounding the guide-rodsl are the coiled springs P, one above the endof the vibrating lever and one below the same, the two springs findingone point of resistance on the said lever and the other against somefixed part of the frame of the machine.

The operation is apparent, and as it is similar to that of similardevices of this character, the novelty in the present instance residingin the peculiarities of construction, a detailed description thereof isnot deemed necessary.

The employment of the spiral springs at the ends of the vibrating leversfor equalizing the power, the loose connection between the bell-cranklevers and the vibrating levers,

and the general construction and arrangement of parts are consideredfeatures of importance, the loose connection especially being deemedimportant, for the reason that slight play is permitted, which avoidsany tendency to injury of the parts which would be occasioned by asudden acceleration of speed.

Vhat I claim as new, and desire to secure by Letters Patent of theUnited States, 'is

1. The combination, with the shutter, the crank-shaft, and thespeed-governor actuated by connection with said shaft, of the vibratinglever actuated by the governor, the bellcrank lever having one of itsarms provided with an elongated slot, through which the end of thevibrating lever passes, the other arm of the bell-crank lever beingconnected with the shutter, the vertical guide-rod, and a springsurrounding the guide-rod and bearing crank-shaft, the speed-governoractuated by connection with said shaft, and the vibrating lever actuatedby connection with the governor and having forked outer end, of theguiderod, the forked end of the vibrating lever embracing saidguide-rod, the bell-crank lever having an arm provided with an elongatedslot, through which the end of the vibrating lever passes, theconnection between the bell-crank lever and the shutter, and the spiralsprings 011 the gnide-rod, one above and the other below the vibratinglever and bearin g on the end thereof, substantially as shown anddescribed.

In testimony whereof I aifix my signature in presence of two witnesses.

JAMES S. ADY. XVitnesses:

II. 1). Teen, B. R. WARD.

